Routine Space Environment Product Issued Weekly
Issued by NWS

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FXXX06 KWNP 180156
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2025 Aug 18 0120 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# https://www.swpc.noaa.gov/content/subscription-services
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#                7-day Space Weather Highlights
#
Highlights of Solar and Geomagnetic Activity
11 - 17 August 2025

Solar activity reached moderate levels on 11-12 Aug due to M-class
(R1-Minor) flare activity observed. Region 4173 (S18, L=110,
class/area=Dro/20 on 10 Aug) produced an M1.3 flare at 11/0352 UTC,
while Region 4168 (N05, L=103, class/area=Eki/350 on 08 Aug)
produced M1 flares at 11/1435, 11/1536, 12/0059, and 12/0123 UTC.
Low levels of solar activity were observed over 13-17 Aug. No
Earth-directed CMEs resulted from the activity observed over the
past week.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached
high levels on 11-17 Aug.

Geomagnetic field activity reached active levels on 11-13 Aug, with
quiet to unsettled levels observed on 14-15 Aug, due to positive
polarity CH HSS influence. Quiet conditions prevailed over 16-17 Aug
with the return of nominal solar wind conditions.